Today, the civil market provides quite a number of different 3D-Sensors covering ranges up to 1 km. Typically these
sensors are based on single element detectors which suffer from the drawback of spatial resolution at larger distances.
Tasks demanding reliable object classification at long ranges can be fulfilled only by sensors consisting of detector
arrays. They ensure sufficient frame rates and high spatial resolution. Worldwide there are many efforts in developing
3D-detectors, based on two-dimensional arrays.
This paper presents first results on the performance of a recently developed 3D imaging laser radar sensor, working in
the short wave infrared (SWIR) at 1.5 μm. It consists of a novel Cadmium Mercury Telluride (CMT) linear array APD
detector with 384x1 elements at a pitch of 25 μm, developed by AIM Infrarot Module GmbH. The APD elements are
designed to work in the linear (non-Geiger) mode. Each pixel will provide the time of flight measurement, and, due to
the linear detection mode, allowing the detection of three successive echoes. The resolution in depth is 15 cm, the
maximum repetition rate is 4 kHz. We discuss various sensor concepts regarding possible applications and their
dependence on system parameters like field of view, frame rate, spatial resolution and range of operation.